Unfortunitly... they say that when your a begginer xD and they say your japanese is fluent when your intermediate, have conversations when your a little better, and when your close to fluent they will start to correct you.. so I've heard, is the way they react to your japanese in Japan~

I have been emailing with one of my other email buddies and he said "Nihongo no rensyuu wo shite iidesuyo. Eigo no rensyuu wo saste kudasai." I know what most of the words mean. I know Nihongo is Japanese, Rensyuu is practice, and Eigo is English, but I don't know what Saste means and I'm not exactly sure how to put them together.

Japanese people will compliment your japanese and continue to do so unless you deny the compliment (japanese custom). The phrase "jouzu desu ne" seems to appear more often when they are uncomfortable because they don't understand than when they are impressed.
I preferred getting false compliments to actual praise of critique, once they actually think you;re good they assume you're fluent.

I am not a beginner (although with Japanese I have a long way to go yet!) but living in the States, I still get the, "Nihongo ga jouzu" when I first meet someone. I think that is because not many people here can speak Japanese well and Nihonjin living here are not used to seeing Americans speaking Japanese.

When I am in Japan, I only hear it when I say something particularly strange like reciting a Basho haiku or patting my stomach and saying 'yo wa manzoku ja' after eating (What the shogun would say after a good meal).

I remember when people stopped saying 'Nihongo ga jouzu.' At first I thought, has my Japanese gotten worse? But then I gradually took their silence as a compliment. The Nihonjin I was speaking with were actually listening to what I was saying (in Japanese) rather than just complimenting me on the fact it was in Japanese.

Kind of a strange phenomena, but one step on the language learning journey.